We humans are known to help out members of our own families. When it comes to business we call it nepotism. Now plants have demonstrated the same predilection, in a study published in the American Journal of Botany. Previous research showed that plan

发表于:2018-12-24 / 阅读(87) / 评论(0) 分类 Scientific American(十一)月

[00:01.13]2 Pronunciation Listen and say. [00:06.19]Do you know how the fan works? [00:09.33]Do you know why the bell is ringing? [00:12.62]Can you tell me what time the lunch break is? [00:17.34]Can you show me how the photocopier works? [00:25.48]3

发表于:2018-12-29 / 阅读(65) / 评论(0) 分类 外研社新标准初中英语八年级

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 serious [ 5siEriEs ] The mistake is no

发表于:2018-12-30 / 阅读(51) / 评论(0) 分类 每日攻克5词

Plants Share Light If Neighbor Is Related A study in the American Journal of Botany finds that plants can tell if they're next to a relative and will grow to allow the kin more access to light. Cynthia Graber reports. We humans are known to help out

发表于:2019-01-30 / 阅读(98) / 评论(0) 分类 60秒科学

BEIJING, May 19 (Xinhuanet) -- Hollywood's A-listers have bid a star-studded farewell to Oprah Winfrey in a double-taping of her talk show at Chicago's United Center. Winfrey's producers made good on their promise of the biggest stars of movies, musi

发表于:2019-02-07 / 阅读(67) / 评论(0) 分类 英语新闻

Todd: So, Melissa, the Super Bowl is coming up. And what do you think about football? Melissa: I think it's really interesting. This Japanese guy recently told me it was the most interesting sport to watch because of the rules, but unfortunately I do

发表于:2019-02-24 / 阅读(77) / 评论(0) 分类 英语趣味课堂